From patchwork Tue Jan 18 07:19:37 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12715986 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8482DC4332F for ; Tue, 18 Jan 2022 07:20:49 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.258330.444641 (Exim 4.92) (envelope-from ) id 1n9imy-0000yv-DE; Tue, 18 Jan 2022 07:20:20 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 258330.444641; Tue, 18 Jan 2022 07:20:20 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1n9imy-0000yo-9k; Tue, 18 Jan 2022 07:20:20 +0000 Received: by outflank-mailman (input) for mailman id 258330; Tue, 18 Jan 2022 07:20:19 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1n9imx-0000yV-Bu for xen-devel@lists.xenproject.org; Tue, 18 Jan 2022 07:20:19 +0000 Received: from bombadil.infradead.org (bombadil.infradead.org [2607:7c80:54:e::133]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 151d6247-782f-11ec-a115-11989b9578b4; Tue, 18 Jan 2022 08:20:16 +0100 (CET) Received: from [2001:4bb8:184:72a4:a4a9:19c0:5242:7768] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1n9imk-000ZPF-0i; Tue, 18 Jan 2022 07:20:06 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 151d6247-782f-11ec-a115-11989b9578b4 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=EcXfe+QJLbyEaBSYcI8IdLx+VpwVU+Twsx7L0heUO1Q=; b=Crht+UUgONjGH1v8HmgHBuR0Pw 3+FhXNSZnyjRNWPG58Wm2G5KNvvpy1aGmBMUIrUK1u4m17TdekCh3eo0S2wKQYJJCbvDqXQsRo2wK voVwIithhKd6AwW1XgXVCGDM2qY6luEVdRs+f8pN0VmiQubGiTFrLb9HST+OMYWI2ooLOR0H3H2W4 vveuXxxHUHwA+40YbvmOhhsxe1wU4IgQ9dJEnKgPFvwGnegPrJbbGgCJPHOwX/k9PMvLPupdzEJoQ dshYui2V9dLVx8Ag4GNgYySKuflXOClHoN9+HnAX1vSgCn5EnBRDfedOUMh6tHzNLJ5kJKsxDwFUO XkKnK+AQ==; From: Christoph Hellwig To: Jens Axboe Cc: Pavel Begunkov , Mike Snitzer , Ryusuke Konishi , Konstantin Komarov , Andrew Morton , "Md . Haris Iqbal " , Jack Wang , =?utf-8?q?Roger_Pau_Monn=C3=A9?= , Philipp Reisner , Lars Ellenberg , linux-block@vger.kernel.org, dm-devel@redhat.com, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-nilfs@vger.kernel.org, ntfs3@lists.linux.dev, xen-devel@lists.xenproject.org, drbd-dev@lists.linbit.com Subject: [PATCH 04/19] ntfs3: remove ntfs_alloc_bio Date: Tue, 18 Jan 2022 08:19:37 +0100 Message-Id: <20220118071952.1243143-5-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220118071952.1243143-1-hch@lst.de> References: <20220118071952.1243143-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html bio_alloc will never fail if it is allowed to sleep, so there is no need for this loop. Also remove the __GFP_HIGH specifier as it doesn't make sense here given that we'll always fall back to the mempool anyway. Signed-off-by: Christoph Hellwig --- fs/ntfs3/fsntfs.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) diff --git a/fs/ntfs3/fsntfs.c b/fs/ntfs3/fsntfs.c index 4de9acb169689..4a255e21ecf5f 100644 --- a/fs/ntfs3/fsntfs.c +++ b/fs/ntfs3/fsntfs.c @@ -1443,17 +1443,6 @@ int ntfs_write_bh(struct ntfs_sb_info *sbi, struct NTFS_RECORD_HEADER *rhdr, return err; } -static inline struct bio *ntfs_alloc_bio(u32 nr_vecs) -{ - struct bio *bio = bio_alloc(GFP_NOFS | __GFP_HIGH, nr_vecs); - - if (!bio && (current->flags & PF_MEMALLOC)) { - while (!bio && (nr_vecs /= 2)) - bio = bio_alloc(GFP_NOFS | __GFP_HIGH, nr_vecs); - } - return bio; -} - /* * ntfs_bio_pages - Read/write pages from/to disk. */ @@ -1496,11 +1485,7 @@ int ntfs_bio_pages(struct ntfs_sb_info *sbi, const struct runs_tree *run, lbo = ((u64)lcn << cluster_bits) + off; len = ((u64)clen << cluster_bits) - off; new_bio: - new = ntfs_alloc_bio(nr_pages - page_idx); - if (!new) { - err = -ENOMEM; - goto out; - } + new = bio_alloc(GFP_NOFS, nr_pages - page_idx); if (bio) { bio_chain(bio, new); submit_bio(bio); @@ -1599,11 +1584,7 @@ int ntfs_bio_fill_1(struct ntfs_sb_info *sbi, const struct runs_tree *run) lbo = (u64)lcn << cluster_bits; len = (u64)clen << cluster_bits; new_bio: - new = ntfs_alloc_bio(BIO_MAX_VECS); - if (!new) { - err = -ENOMEM; - break; - } + new = bio_alloc(GFP_NOFS, BIO_MAX_VECS); if (bio) { bio_chain(bio, new); submit_bio(bio);